<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

/**
 * 行为扩展 URL资源类型检测
 */
class CheckUrlExtBehavior extends Behavior {

	/**
	 * 检测URL地址中资源扩展
	 * @access public
	 * @return void
	 */
	public function run(&$params) {
		// 获取资源类型
		if(!empty($_SERVER['PATH_INFO'])) {
			$part =  pathinfo($_SERVER['PATH_INFO']);
			if(isset($part['extension'])) { // 判断扩展名
				define('__EXT__', strtolower($part['extension']));
				$_SERVER['PATH_INFO']   =   preg_replace('/.'.__EXT__.'$/i','',$_SERVER['PATH_INFO']);
			}
		}
	}

}